7168f2726e
This adds fuzzers for: - CallStack - Looper - LruCache - Printer - ProcessCallStack - PropertyMap - RWLock - RefBase - StopWatch. Test: Ran each fuzzer for 10 minutes. Rough coverage est. (likely far below actual value): 10.97% Signed-off-by: Dylan Katz <dylan.katz@leviathansecurity.com> Change-Id: I2f9f35c18b13338c282fb7f9c3ea4099ecb2c56f
76 lines
3.7 KiB
C++
Executable file
76 lines
3.7 KiB
C++
Executable file
/*
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* Copyright 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "android-base/file.h"
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#include "fuzzer/FuzzedDataProvider.h"
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#include "utils/PropertyMap.h"
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#include "utils/String8.h"
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static constexpr int MAX_FILE_SIZE = 256;
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static constexpr int MAX_STR_LEN = 2048;
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static constexpr int MAX_OPERATIONS = 1000;
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static const std::vector<std::function<void(FuzzedDataProvider*, android::PropertyMap)>>
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operations = {
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[](FuzzedDataProvider*, android::PropertyMap propertyMap) -> void {
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propertyMap.getProperties();
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},
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[](FuzzedDataProvider*, android::PropertyMap propertyMap) -> void {
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propertyMap.clear();
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},
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[](FuzzedDataProvider* dataProvider, android::PropertyMap propertyMap) -> void {
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std::string keyStr = dataProvider->ConsumeRandomLengthString(MAX_STR_LEN);
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android::String8 key = android::String8(keyStr.c_str());
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propertyMap.hasProperty(key);
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},
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[](FuzzedDataProvider* dataProvider, android::PropertyMap propertyMap) -> void {
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std::string keyStr = dataProvider->ConsumeRandomLengthString(MAX_STR_LEN);
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android::String8 key = android::String8(keyStr.c_str());
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android::String8 out;
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propertyMap.tryGetProperty(key, out);
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},
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[](FuzzedDataProvider* dataProvider, android::PropertyMap propertyMap) -> void {
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TemporaryFile tf;
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// Generate file contents
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std::string contents = dataProvider->ConsumeRandomLengthString(MAX_FILE_SIZE);
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// If we have string contents, dump them into the file.
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// Otherwise, just leave it as an empty file.
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if (contents.length() > 0) {
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const char* bytes = contents.c_str();
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android::base::WriteStringToFd(bytes, tf.fd);
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}
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android::PropertyMap* mapPtr = &propertyMap;
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android::PropertyMap::load(android::String8(tf.path), &mapPtr);
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},
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[](FuzzedDataProvider* dataProvider, android::PropertyMap propertyMap) -> void {
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std::string keyStr = dataProvider->ConsumeRandomLengthString(MAX_STR_LEN);
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std::string valStr = dataProvider->ConsumeRandomLengthString(MAX_STR_LEN);
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android::String8 key = android::String8(keyStr.c_str());
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android::String8 val = android::String8(valStr.c_str());
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propertyMap.addProperty(key, val);
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},
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};
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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FuzzedDataProvider dataProvider(data, size);
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android::PropertyMap proprtyMap = android::PropertyMap();
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int opsRun = 0;
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while (dataProvider.remaining_bytes() > 0 && opsRun++ < MAX_OPERATIONS) {
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uint8_t op = dataProvider.ConsumeIntegralInRange<uint8_t>(0, operations.size() - 1);
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operations[op](&dataProvider, proprtyMap);
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}
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return 0;
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}
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